P-3(2)-F-3(2) PAIRING IN NEUTRON MATTER WITH MODERN NUCLEON-NUCLEON POTENTIALS

We present results for the P-3(2)-F-3(2) pairing gap in neutron matter with several realistic nucleon-nucleon potentials, in particular with recent phase-shift-equivalent potentials. We find that their predicti ons for the gap cannot he trusted at densities above rho approximate t o 1.7 rho(0), where po is the saturation density for symmetric nuclear matter. In order to make predictions above that density, potential mo dels which fit the nucleon-nucleon phase shifts up to about 1 GeV are required. [S0556-2813(98)06010-5].